lib/asn1/der_copy.c

   1 /*
   2  * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "der_locl.h"
  37
  38 RCSID("$Id$");
  39
  40 int
  41 der_copy_general_string (const heim_general_string *from,
  42                          heim_general_string *to)
  43 {
  44     *to = strdup(*from);
  45     if(*to == NULL)
  46         return ENOMEM;
  47     return 0;
  48 }
  49
  50 int
  51 der_copy_integer (const int *from, int *to)
  52 {
  53     *to = *from;
  54     return 0;
  55 }
  56
  57 int
  58 der_copy_unsigned (const unsigned *from, unsigned *to)
  59 {
  60     *to = *from;
  61     return 0;
  62 }
  63
  64 int
  65 der_copy_generalized_time (const time_t *from, time_t *to)
  66 {
  67     *to = *from;
  68     return 0;
  69 }
  70
  71 int
  72 der_copy_utctime (const time_t *from, time_t *to)
  73 {
  74     *to = *from;
  75     return 0;
  76 }
  77
  78 int
  79 der_copy_utf8string (const heim_utf8_string *from, heim_utf8_string *to)
  80 {
  81     return der_copy_general_string(from, to);
  82 }
  83
  84 int
  85 der_copy_printable_string (const heim_printable_string *from,
  86                        heim_printable_string *to)
  87 {
  88     to->length = from->length;
  89     to->data   = malloc(to->length + 1);
  90     if(to->data == NULL)
  91         return ENOMEM;
  92     memcpy(to->data, from->data, to->length);
  93     ((char *)to->data)[to->length] = '\0';
  94     return 0;
  95 }
  96
  97 int
  98 der_copy_ia5_string (const heim_ia5_string *from,
  99                      heim_ia5_string *to)
 100 {
 101     return der_copy_printable_string(from, to);
 102 }
 103
 104 int
 105 der_copy_bmp_string (const heim_bmp_string *from, heim_bmp_string *to)
 106 {
 107     to->length = from->length;
 108     to->data   = malloc(to->length * sizeof(to->data[0]));
 109     if(to->length != 0 && to->data == NULL)
 110         return ENOMEM;
 111     memcpy(to->data, from->data, to->length * sizeof(to->data[0]));
 112     return 0;
 113 }
 114
 115 int
 116 der_copy_universal_string (const heim_universal_string *from,
 117                            heim_universal_string *to)
 118 {
 119     to->length = from->length;
 120     to->data   = malloc(to->length * sizeof(to->data[0]));
 121     if(to->length != 0 && to->data == NULL)
 122         return ENOMEM;
 123     memcpy(to->data, from->data, to->length * sizeof(to->data[0]));
 124     return 0;
 125 }
 126
 127 int
 128 der_copy_visible_string (const heim_visible_string *from,
 129                          heim_visible_string *to)
 130 {
 131     return der_copy_general_string(from, to);
 132 }
 133
 134 int
 135 der_copy_octet_string (const heim_octet_string *from, heim_octet_string *to)
 136 {
 137     to->length = from->length;
 138     to->data   = malloc(to->length);
 139     if(to->length != 0 && to->data == NULL)
 140         return ENOMEM;
 141     memcpy(to->data, from->data, to->length);
 142     return 0;
 143 }
 144
 145 int
 146 der_copy_heim_integer (const heim_integer *from, heim_integer *to)
 147 {
 148     to->length = from->length;
 149     to->data   = malloc(to->length);
 150     if(to->length != 0 && to->data == NULL)
 151         return ENOMEM;
 152     memcpy(to->data, from->data, to->length);
 153     to->negative = from->negative;
 154     return 0;
 155 }
 156
 157 int
 158 der_copy_oid (const heim_oid *from, heim_oid *to)
 159 {
 160     to->length     = from->length;
 161     to->components = malloc(to->length * sizeof(*to->components));
 162     if (to->length != 0 && to->components == NULL)
 163         return ENOMEM;
 164     memcpy(to->components, from->components,
 165            to->length * sizeof(*to->components));
 166     return 0;
 167 }
 168
 169 int
 170 der_copy_bit_string (const heim_bit_string *from, heim_bit_string *to)
 171 {
 172     size_t len;
 173
 174     len = (from->length + 7) / 8;
 175     to->length = from->length;
 176     to->data   = malloc(len);
 177     if(len != 0 && to->data == NULL)
 178         return ENOMEM;
 179     memcpy(to->data, from->data, len);
 180     return 0;
 181 }